40036356 has 60 divisors (see below), whose sum is σ = 108297420. Its totient is φ = 12882240.

The previous prime is 40036349. The next prime is 40036357. The reversal of 40036356 is 65363004.

It can be written as a sum of positive squares in 2 ways, for example, as 31741956 + 8294400 = 5634^2 + 2880^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40036357) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7266 + ... + 11526.

It is an arithmetic number, because the mean of its divisors is an integer number (1804957).

Almost surely, 2^40036356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40036356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54148710).

40036356 is an abundant number, since it is smaller than the sum of its proper divisors (68261064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40036356 is a wasteful number, since it uses less digits than its factorization.

40036356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 40036356 is about 6327.4288617099. The cubic root of 40036356 is about 342.0987711024.

The spelling of 40036356 in words is "forty million, thirty-six thousand, three hundred fifty-six".